1. Introduction
Sami HTTP Server 1.0.4 contains a GET request remote overflow vulnerability. This means an attacker could send a specially crafted request to cause the web server to crash, or potentially run their own code on it. Systems running older versions of Sami HTTP Server are affected. Successful exploitation may result in denial of service and/or arbitrary code execution, impacting confidentiality, integrity, and availability.
2. Technical Explanation
The vulnerability is due to insufficient bounds checking when handling GET requests. An attacker can send a request with an excessively long URI, overflowing a buffer and corrupting the program’s memory. This allows control of execution flow, potentially leading to arbitrary code execution. The CVE associated with this issue is CVE-2004-0292.
- Root cause: Lack of input validation on the length of the GET request URI.
- Exploit mechanism: An attacker sends a crafted HTTP GET request containing an extremely long URI, exceeding the buffer size allocated for handling the request. This overwrites adjacent memory regions, potentially altering program control flow. For example, sending a request like
GET 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